Concrete-form clamp



E.H.MOSHER CONCRETE FORM CLAMP Sept. 1, 1925. 1,552,334

Filed Oct. 13, 1923 ATTO R N EY WITNESS:

Patented Sept. 1, 1925. v

UNITED STATES PATENT OFFICE.

EDGAR H. KOSHER, OF WASHINGTON, DISTRICT OF COLUMBIA.

CONCRETE-FORM cam.

Application filed we... 1a, 1022. Serial llo. 888,441.

To all whom it may concern:

Be it known that I, EDGAR H. Mosrmn, .a citizen of the United States,residing at Washington, in the District of Columbia, have invented newand useful Im rovements in Concrete-Form Clamps, of which the followingis a specification.

This invention relates to improvements in clamps or looks, mainldesigned for looking to ether sections concrete forms, the genera objectof the invention being to provide a simple and effective device foreasily portions of the at 1 and the and quickl connecting together thesections, the parts being so forms that they can be used over and over ain.

Another object of t e invention is to provide means whereby the sectionsare automatically placed in proper alignment by the lockin means.

A girther object of the invention is to provide means for locking thecorner sections of the form to ether.

This invention a so conslsts in certain other features of constructionand in the combination and arrangement of the several arts, to behereinafter fully described, ilustrated in the accompanying drawings andspecifically pointed out 1n the appended c aims. y

In describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a fragmentary perspective view showing one of my improved evices 1nuse.

Figures 2 and 3 are views showing how tlliie e vice acts to place theform sections in I ent. gure 4 is a fragmentary sectional view showing aslightly modified form of device usedto connect two' corner sectionstogether. Fi e 5 is a perspective view of one of the gd t ices shown inFigure 4.

As is well known the forms for building concrete structures are made upof a number of sections, each section consisting of a frame of angleiron and a plate of sheet iron and it is the object of my invention toconnect these sections together. In Figure 1 angle iron frames are shownlates at 2. In carrying out my invention form slots 3 in the abuttingflanges of the frames and provide a lurality of angle locking members 4w ich shown in Figures 1 and 3, so that the edges of the neck 6 willengage the walls of the slot, thus forcing the slots into alignment andconsequently moving the sections into all cut. The neck is made of sucha wi th as to snugly fit 'in'the slots so as to brlng the parts intoalignment, as shown in figure 3. When in locking osition the secon l1mbof the member wi I extend in the same direction as the abutting flangesof the frames so that it will be out of theway, as shown in Figure 1.

I cut away the end portion ofthis second part of each member so as'toleave the corner recesses 7, thus providing a space to receive a tool inorder to turn the member to unlocking position, if the member should beclose to the flange of the angle iron frame.

. Figure 5 shows a modified form of looking member in which the headpart 5' and neck 6' extend from one side instead of the end of the limb,the limbs being cut away, as at 8, for this purpose. The second limb iscurved, as at 9, and provided with a slot 10 for receiving a bolt 11 sothat a pair of members can be used for fastening together the cornersections of the form, as shown in Figure 4. In this figure two cornersections are shown at A and an angle post B is placed at the ends ofthese sections.

From the above it will be seen that my locking devices can be easily andquickly placed in position to connect together the sections of the formand the form can be interfere with workmen in bu1 ding a structurewith'my forms.

It is thought from the foregoing description that the advantagzs andnove features of my invention will readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall withm the scope of the appended claims.

What I claim is 1. A device of the class described comprising a lockingmember of substantially angle shape, one 'mb of the member having a headand a neck connecting the head with the rest of the limb.

2. A device of the class described comprising a locking member ofsubstantially angle shape, one imb of the member having a head and aneck connecting the head with the rest of thelimb and the second limbhaving a slot therein.

3. In a sectional form, the sections having slotted abutting portions, alocking member for engaging the slots and having a head and a neckconnecting the head with the member, said head and neck being capable ofbein passed through the slots and the neck bem of slightly less widththan the width of t e slots so that when the device is turned after beininserted between the slots to lace the neo crosswise of the slots thesections will be aligned by the neck engaging the walls of the slots.

4. In a sectional form, the sections having slotted portions, a pair ofmembers havin key-shaped parts for engaging the slots an bent portionsat the ends opposite the T- shaped portions, said bent portions havingeyes therein and a bolt passing through the eyes for connecting the twomembers togxlether for locking the corner sections in ace.

p 5. In a sectional form including flanged members having openingstherein, a locking member for engaging the openings and having a neckpart for engaging the walls of the opening when the device is in locking0- sition to he in the sections, said mem r being of smaller width thanthe flan es so that the outer edges of the flanges w project beyond thesame when the member is in locked position. v

' In testimony whereof I aflix my signature.

EDGAR H. MOSHER.

